What are the characteristics of the mantle?

The mantle is solid, about 2900 km thick, and consists high-Mg silicate rocks. Mineralogy depends on the layer, the density increases from about 3 at the top to 5.5 at the base. Over time it behaves as a viscous fluid, which is to say there is laminar flow up, sideways and down: convection. read more

The mantle is a layer inside a terrestrial planet and some other rocky planetary bodies. For a mantle to form, the planetary body must be large enough to have undergone the process of planetary differentiation by density. The mantle is bounded on the bottom by the planetary core and on top by the crust. read more

Some of the characteristics of the mantle: It is 82% of earth’s volume. It is 2885 km thick; It is composed of basaltic (ultramafic) rock and minerals such as olivine, peridotite, and pyroxene. It is stratified into three main layers: the Lithosphere, the Athenosphere, and the Mesosphere. read more

The Earth's mantle is the portion of the planet that lies between the crust and the core. Some of its secrets are now coming to light. The Earth's mantle is the portion of the planet that lies between the crust and the core. read more